Format Tab (Custom OFDM)
The Format tab of the Custom OFDM Orthogonal Frequency Division Multiplexing: OFDM employs multiple overlapping radio frequency carriers, each operating at a carefully chosen frequency that is Orthogonal to the others, to produce a transmission scheme that supports higher bit rates due to parallel channel operation. OFDM is an alternative tranmission scheme to DSSS and FHSS. Demodulation Properties dialog box lets you configure the demodulator for Custom OFDM signals. These are the parameters necessary for the VSA to lock on to and demodulate the test signal.
The Format tab dialog box enables you configure these buttons and parameters:
- Preset to Standard
- Load Reference Data IQ Values...
- Load Reference Pilot IQ Values...
- Load Reference Preamble IQ Values...
- Load Resource Allocations...
- Load Resource Map...
- Load Resource Modulation...
Frame Parameters
General
- Modulation Scheme
- Multiple Access Scheme
- Cross-Correlated EVM
- Pilot In Time Domain
- Transmitter Antennas
Time Domain
- System Rate
- Cyclic Prefix (Ratio) Per Symbol
- Cyclic Suffix (Ratio) Per Symbol
- CP/CS Repeat Index
- Signal is Bursted
- Time Gap (Samples) Per Symbol
- Time Gap Repeat Index
- Transmitter Window Beta (Ratio)
Frequency Domain
Allocations & Frame Parts
Allocations
- All Data Streams Active
- QAM Identifier Power Boost Levels
- QAM Identifiers
- QAM Levels
- Reference Data IQ Values
- Reference Pilot IQ Values
- Reference Preamble IQ Values
- Resource Interface
- Resource Allocations (Resource Interface = Type2)
- Resource Map (Resource Interface = Type1)
- Resource Modulation (Resource Interface = Type1)
- Resource Repeat Index
- Unknown Pilot Power Boost Level
Allocations: Per Frame Part
- CDM Group Subcarrier Count Per Frame Part (Resource Interface = Type2)
- CDM Group Symbol Count Per Frame Part (Resource Interface = Type2)
Allocations: Per Allocation
- Active Ports Per Allocation (Resource Interface = Type2)
- Frame Part ID Per Allocation (Resource Interface = Type2)
- Modulation Per Allocation (Resource Interface = Type2)
- Power Boost Level Per Allocation (Resource Interface = Type2)
- Resource Type Per Allocation (Resource Interface = Type2)
- User ID Per Allocation (Resource Interface = Type2)
Allocations: Per User
- Name Per User
- CDM Group Subcarrier Count Per User (Resource Interface = Type1)
- CDM Group Symbol Count Per User (Resource Interface = Type1)
- Power Boost Level Per User (Resource Interface = Type1)
See Also
